These rails are combined into roller guide systems together with roller carriages GN2424 or rollers GN2426. These space-saving units are suitable for carrying sliding doors or used in mechanical engineering or jigmaking for the linear traversal of plant sections.

These systems feature high stability and quiet running at high traversal speeds. Thanks to the option of combining fixed and floating bearing rails, they make no great demands on the surrounding construction and so allow parallelism errors to be compensated. Flat headed screws with low head are included with the rail types UT/ XT.